08-26A sea swallow feeding on the tentacles of a blue button in Coffs Harbour, New South Wales, Australia - Gary Bell
08-24Old surfboards lined up as a fence near Paia, Maui, Hawaii - Matt Anderson Photography/Getty Images)
08-22The shoreline of Olympic Coast National Marine Sanctuary, Washington state - Chris Moore/Tandem Stills + Motion)
08-21Petit Minou Lighthouse in the roadstead of Brest, Finistère, France - Mathieu Rivrin/Getty Images)
08-20Rub' al Khali desert on the border of Oman and the Emirate of Dubai - Daniel Schoenen/Offset by Shutterstock)